R Programming for Beginners

1 - Introduction

A Brief History of R

What exactly is R Programming

What are the benefits of using R language

2 - Your First R Session

Entering Commands in the Console Window

Performing simple calculations

Using a Function

Storing calculated values

Sourcing a Script

3 - The R Syntax

Expressions

Constants

Arithmetic

Conditions

Function calls

Symbols

Keywords

Naming Variables

4 - Effective use of Functions and Arguments

Ways to vectorize Functions

Passing Arguments to Functions

Making your code plain and readable

5 - Packages

Finding R Packages

Installing a Package

Loading and unloading Packages

6 - Working with numbers

Arithmetic Operators

Using Mathematical Functions

Logarithms and Exponentials

Infinity Function

Dealing with lost values

7 - Vectors

Creating Vectors

Combining Vectors

Repeating Vectors

Getting values in and out of Vectors

The Indexing System

Extracting values from Vectors

Changing Vector values

8 - Logical Vectors

Comparing values

Vectors as Indices

Merging Logical statements

9 - Character Vectors

Creating and assigning Named Vectors

Manipulating text

Splitting text

Concatenating text

10 - Dates and Times

Date Functions

Adding Time Details to Dates

11 - Combining Vectors into Matrix

Creating a Matrix

Ways to combine Vectors into Matrix

Calculating with Matrices

12 - Data-Frames

Building a Data-Frame from a Matrix

Other ways to create a Data-Frame

Manipulating Data Frame values

Extracting Data-Frame values

Assuming Data-Frames as a Matrix

13 - Lists

Creating a List

Unnamed Lists

Named Lists

Combining Lists

14 - Scripts

Creating a Script

Transforming a Script into a Function

Using the Function

Using Arguments, the smart way

The ‘multiply’ Argument

Default values

15 - Logical Flow

If statements

If…Else statements

16 - Loops

For Loop

Computing values in a For Loop

17 - Debugging your code

Error Types

Interpreting warnings and errors

Browsing through a Function

18 - Getting Data in and out of R

Entering Data in the Text Editor

Using the Clipboard

Importing Data

Exporting Data

19 - Processing Data

Choosing the right Data-Structure

Basic Subset Operators

Specifying the Subset

Summarising your Data

Counting unique values

Preparing Data

20 - Working with Graphics

Using Base Graphics

Creating Plots

Adding points to a Plot

Creating a Lattice Plot